The name may just ruin this piece for you, but I can't help it.  It's what I think of every time I look at the thing.  The anodized aluminum looks exactly like crayon wax to me.

Some photoshoot humor (my brother, not me)

18 ga 1/8" ID
Black Enameled Copper
16 ga 3/16" ID
Violet Anodized Aluminum
16 ga 1/4" ID
Turquoise Anodized Aluminum
In the European 4:1 weave.